Finding the Fourth Proportional to 2,145,496,973.62, 2,961,031,020.69 and 1,192,972,683.08
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Solution
The fourth proportional to 2,145,496,973.62, 2,961,031,020.69 and 1,192,972,683.08 is: 1,646,438,640.96
Step by Step Solution
- Step 1: Write the proportion equation
2,145,496,973.62 : 2,961,031,020.69 = 1,192,972,683.08 : x - Step 2: Convert to fraction form
2,145,496,973.62/2,961,031,020.69 = 1,192,972,683.08/x - Step 3: Cross multiply
2,145,496,973.62x = 2,961,031,020.69 × 1,192,972,683.08 - Step 4: Simplify right side
2,145,496,973.62x = 3,532,429,121,435,660,288 - Step 5: Solve for x
x = 3,532,429,121,435,660,288/2,145,496,973.62 - Step 6: Final answer
x = 1,646,438,640.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.